Fixed the logic for tethering provisioning re-evaluation

Previously we only re-evaluate provisioning for SIM swap case
The new logic covers both SIM swap case
(ABSENT->NOT_READY->UNKNOWN->READY->LOADED) and modem reset
case (NOT_READY->READY->LOADED)

Test: Manual
bug: 33815946

Change-Id: I9960123605b10d3fa5f3584c6c8b70b616acd6f8
(cherry picked from commit 91a0bc956445c1a0fa099d3e8e87affe217519f7)
diff --git a/services/core/java/com/android/server/connectivity/Tethering.java b/services/core/java/com/android/server/connectivity/Tethering.java
index 1012f9a..72b31ce 100644
--- a/services/core/java/com/android/server/connectivity/Tethering.java
+++ b/services/core/java/com/android/server/connectivity/Tethering.java
@@ -1812,9 +1812,8 @@
             // used to verify this receiver is still current
             final private int mGenerationNumber;
 
-            // we're interested in edge-triggered LOADED notifications, so
-            // ignore LOADED unless we saw an ABSENT state first
-            private boolean mSimAbsentSeen = false;
+            // used to check the sim state transition from non-loaded to loaded
+            private boolean mSimNotLoadedSeen = false;
 
             public SimChangeBroadcastReceiver(int generationNumber) {
                 super();
@@ -1832,14 +1831,14 @@
                 final String state =
                         intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE);
 
-                Log.d(TAG, "got Sim changed to state " + state + ", mSimAbsentSeen=" +
-                        mSimAbsentSeen);
-                if (!mSimAbsentSeen && IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(state)) {
-                    mSimAbsentSeen = true;
+                Log.d(TAG, "got Sim changed to state " + state + ", mSimNotLoadedSeen=" +
+                        mSimNotLoadedSeen);
+                if (!mSimNotLoadedSeen && !IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state)) {
+                    mSimNotLoadedSeen = true;
                 }
 
-                if (mSimAbsentSeen && IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state)) {
-                    mSimAbsentSeen = false;
+                if (mSimNotLoadedSeen && IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state)) {
+                    mSimNotLoadedSeen = false;
                     try {
                         if (mContext.getResources().getString(com.android.internal.R.string.
                                 config_mobile_hotspot_provision_app_no_ui).isEmpty() == false) {